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Barley yellow dwarf virus infections present in cereals at Lincoln, in the Canterbury area of New Zealand, in 1986 and 1987 were identified by ELlSA as PAV-, MAV-, RPVand RMV-like serotypes. Transmission of these serotypes by the aphid vectors Metopolophium dirhodum, Rhopalosiphum maidis,...
A stain tube with a removable bottom and a permanently mounted sieve enables quick, easy and efficient staining of vesicular-arbuscular mycorrhizae.
The fungicides imazalil and prochloraz were effective against blue mould infection of apples when applied as a dip before or after inoculation, or when incorporated in a dip solution containing spores. Prochloraz was highly effective at all spore concentrations tested, but the efficacy of...
Barley stripe mosaic virus was detected using enzymelinked immunosorbent assay in the Western Australian barley germplasm collection in accessions originally introduced from Mexico, New Zealand and USA. The virus was also intercepted in one accession introduced from Japan into post-entry...
Pirex subvinosus is reported for the first time from Australia. It was isolated from roots and stems of Leucaena leucocephala exhibiting dieback at Kununurra, Western Australia. Fructifications of P. subvinosus were induced on balsa-wood blocks after incubation for 12 weeks.
The perfect stage of the powdery mildew on cucurbits was collected in South Australia in 1982 and 1983 and in New South Wales in 1988. The cleistothecia were those of Sphaerotheca fuliginea. All collections were made in autumn from two locations in South Australia and from six locations in...
Small patches of Pinus radiata seedlings growing in light, sandy, nursery soils at Rennick in south-western Victoria turned chlorotic; many seedlings were stunted and a few died. Symptoms were associated with a heavy infestation of Rotylenchus robustus in roots and soil. This is believed to be a...
Poultry manure and sawdust (24, 36 or 48 tlha) were incorporated into soil with urea (0–1800 kg nitrogenlha) and their effects on yield of ginger and populations of Meloidogyne incognita were compared with those of nematicide programmes involving ethylene dibromide andlor fenamiphos. The...
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